54611985 has 16 divisors (see below), whose sum is σ = 91978560. Its totient is φ = 27593280.

The previous prime is 54611983. The next prime is 54612001. The reversal of 54611985 is 58911645.

It is not a de Polignac number, because 54611985 - 2¹ = 54611983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (54611981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95526 + ... + 96095.

It is an arithmetic number, because the mean of its divisors is an integer number (5748660).

Almost surely, 2^54611985 is an apocalyptic number.

It is an amenable number.

54611985 is a deficient number, since it is larger than the sum of its proper divisors (37366575).

54611985 is a wasteful number, since it uses less digits than its factorization.

54611985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191648.

The product of its digits is 43200, while the sum is 39.

The square root of 54611985 is about 7389.9922192111. The cubic root of 54611985 is about 379.3988301370.

The spelling of 54611985 in words is "fifty-four million, six hundred eleven thousand, nine hundred eighty-five".